1891.] D. "Prshin— 'The Vegetation of the Coco Group. 33? 



300. Ceratoptebis thalictroides Brogn. 



Great Coco, in wet places in the interior witb. Gyperus elegans. 



Cosmopolitan in the tropics. 



When discussing the weeds of the Andaman Flora (Jour. As. Sac, 

 Beng.) the writer imagined this fern to have heen introduced into these 

 islands by human agency, at least indirectly. But the Coco locality 

 proves sufficiently to his mind that its presence is altogether indepen- 

 dent of man's presence, and he has since then collected it in similar 

 situations in South Andaman. It is probably not at all common how- 

 ever, and hence it had escaped the notice of Mr. Kurz when he collected 

 in the Andamans. 



301. PoLYPODiuM IRTOIDES Lamk. 

 In all the islands, frequent. 



India, Indo- China, Andamans, Malaya ; Australia, Polynesia ; Africa 



302. POLYPODIUM ADNA3CBNS Sw. 



Great Coco, on trees in mangrove swamps ; Little Coco, on trees in 

 lagoon at south-west end of island. 



India, Indo- China ; Andamans, Nicobars ; Malaya ; Polynesia ; 

 Africa. 



303. PoLYPODiUM QUEECiFOLiUM Linn. 



In all the islands, very plentiful in the same situations as DavalUa 

 solida. 



India, Indo-China ; Andamans, Nicobars j Malaya ; North Australia. 



304. VlTTARIA BLONGATA Sw. 



Great Coco, not very common, 



India, Indo-China; Andamans, Malaya; Australia, Polynesia; 

 Africa. 



305. ACROSTICHUM SCANDENS J. Sm. 



Great Coco, very common in the low-lying lands behind the coast 

 zone. 



India, Indo-China ; Andamans, Malaya ; Australia, Polynesia. 



306. ACROSTICHUM APPENDICULATUM Willd,, var. SETOSA. 



Great Coco, the only common ground fern on the interior ridges. 

 India, Indo-China; Andamans, Malaya. 



307. Lygodium flexugsum Sw. ; Bedd. 



In all the islands, common in the dense dwarfed jungle on the 

 ridges. 



India, Burma ; Andamans, Malaya ; Australia ; Africa. 



CHARACE^. 



308. Chara p(etida A. Braun. 



Little Coco ; abundant in the lagoon. 

 India, Indo-China. 



